Preserving valuable comic books can only be done by using archivally safe products that meet government specifications. The initial layer of protection is to place them in Mylar sleeves and then into acid free boxes. If using a backing board as a stiffener, only acid free boards should be used.

The boxes have had a 3% calcium carbonate buffer added, which maintains an acid-free alkaline ph content of 8.0-8.5 throughout, not just on the surface. All boxes fold flat for shipping. Easy snap up assembly. Does not require glue or tape.